From: "Michael S. Tsirkin" <mst@redhat•com>
To: David Miller <davem@davemloft•net>
Cc: jasowang@redhat•com, kvm@vger•kernel.org,
virtualization@lists•linux-foundation.org,
netdev@vger•kernel.org, linux-kernel@vger•kernel.org,
peterx@redhat•com, James.Bottomley@hansenpartnership•com,
hch@infradead•org, jglisse@redhat•com, linux-mm@kvack•org,
linux-arm-kernel@lists•infradead.org,
linux-parisc@vger•kernel.org, christophe.de.dinechin@gmail•com,
jrdr.linux@gmail•com
Subject: Re: [PATCH net-next 0/6] vhost: accelerate metadata access
Date: Thu, 30 May 2019 14:13:28 -0400 [thread overview]
Message-ID: <20190530141243-mutt-send-email-mst@kernel.org> (raw)
In-Reply-To: <20190530.110730.2064393163616673523.davem@davemloft.net>
On Thu, May 30, 2019 at 11:07:30AM -0700, David Miller wrote:
> From: Jason Wang <jasowang@redhat•com>
> Date: Fri, 24 May 2019 04:12:12 -0400
>
> > This series tries to access virtqueue metadata through kernel virtual
> > address instead of copy_user() friends since they had too much
> > overheads like checks, spec barriers or even hardware feature
> > toggling like SMAP. This is done through setup kernel address through
> > direct mapping and co-opreate VM management with MMU notifiers.
> >
> > Test shows about 23% improvement on TX PPS. TCP_STREAM doesn't see
> > obvious improvement.
>
> I'm still waiting for some review from mst.
>
> If I don't see any review soon I will just wipe these changes from
> patchwork as it serves no purpose to just let them rot there.
>
> Thank you.
I thought we agreed I'm merging this through my tree, not net-next.
So you can safely wipe it.
Thanks!
--
MST
next prev parent reply other threads:[~2019-05-30 18:13 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-24 8:12 [PATCH net-next 0/6] vhost: accelerate metadata access Jason Wang
2019-05-24 8:12 ` [PATCH net-next 1/6] vhost: generalize adding used elem Jason Wang
2019-05-24 8:12 ` [PATCH net-next 2/6] vhost: fine grain userspace memory accessors Jason Wang
2019-05-24 8:12 ` [PATCH net-next 3/6] vhost: rename vq_iotlb_prefetch() to vq_meta_prefetch() Jason Wang
2019-05-24 8:12 ` [PATCH net-next 4/6] vhost: introduce helpers to get the size of metadata area Jason Wang
2019-05-24 8:12 ` [PATCH net-next 5/6] vhost: factor out setting vring addr and num Jason Wang
2019-05-24 8:12 ` [PATCH net-next 6/6] vhost: access vq metadata through kernel virtual address Jason Wang
2019-05-30 18:07 ` [PATCH net-next 0/6] vhost: accelerate metadata access David Miller
2019-05-30 18:13 ` Michael S. Tsirkin [this message]
2019-05-30 18:55 ` David Miller
2019-06-05 20:27 ` Michael S. Tsirkin
2019-06-10 3:50 ` Jason Wang
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